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首页> 外文会议>Solid State and Diode Laser Technology Review(SSDLTR 2004) >Compact High Heat Flux Thermal Energy Storage System for Solid State Laser Weapons
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Compact High Heat Flux Thermal Energy Storage System for Solid State Laser Weapons

机译：固态激光武器的紧凑型高热通量储能系统

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摘要

One of the challenges to high power solid-state lasers (SSL) is the very high heat loads produced during lasing. A thermal energy storage (TES) system capable of rapid heat absorption followed by heat rejection over a longer period of time can reduce the size of the thermal management system required to handle these heat loads by over a factor of ten. The most compact system approaches for thermal storage use phase change materials (PCMs) such as ice or paraffins. Using the latent heat of fusion of these materials, a large amount of energy can be stored in a relatively small mass and volume. The major drawback with this approach is a relatively low heat flux due to the low thermal conductivity of the ice and paraffin, which have thermal conductivities of 1.9 and 0.15 W/m/℃ respectively, compared to that of copper at 386 W/m/℃. A new PCM system design approach is proposed that uses a phase change composite (PCC) material, which dramatically increases the effective thermal conductivity, k_f, of the PCM. The material consists of high conductivity carbon fibers, 5 to 10 mm long, bonded to a metal substrate with a packing fraction of ～0.1. Water or paraffin is infiltrated into the carbon fiber structure, which can be constructed as circular tubes or flat plates.
机译：高功率固态激光器（SSL）的挑战之一是在发射激光时产生很高的热负荷。能够快速吸收热量并在较长时间内排热的热能存储（TES）系统可以将处理这些热负荷所需的热管理系统的尺寸减小十倍以上。用于储热的最紧凑的系统方法是使用相变材料（PCM），例如冰或石蜡。使用这些材料的熔化潜热，可以以相对较小的质量和体积存储大量能量。这种方法的主要缺点是由于冰和石蜡的低热导率导致相对较低的热通量，与铜的386 W / m / m相比，它们的热导率分别为1.9和0.15 W / m /℃。 ℃。提出了一种新的PCM系统设计方法，该方法使用相变复合材料（PCC），可以显着提高PCM的有效导热系数k_f。该材料由5至10毫米长的高导电性碳纤维组成，该碳纤维以〜0.1的堆积率粘结到金属基材上。水或石蜡渗透到碳纤维结构中，该碳纤维结构可以构造为圆形管或平板。

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